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Finding the Fourth Proportional to 223,816.70, 335,725.05 and 221,483.90

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Solution

The fourth proportional to 223,816.70, 335,725.05 and 221,483.90 is: 332,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,816.70 : 335,725.05 = 221,483.90 : x
  2. Step 2: Convert to fraction form
    223,816.70/335,725.05 = 221,483.90/x
  3. Step 3: Cross multiply
    223,816.70x = 335,725.05 × 221,483.90
  4. Step 4: Simplify right side
    223,816.70x = 74,357,693,401.70
  5. Step 5: Solve for x
    x = 74,357,693,401.70/223,816.70
  6. Step 6: Final answer
    x = 332,225.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.